The Difference between TFT LCD Screen and STN

    TFT LCD Screen is Thin Film Transistor，which is each LCD pixel is driven by a thin film transistor integrated behind the pixel.Therefore, LCD screen can achieve high speed, high brightness and high contrast display screen information.TFT is one of the best LCD color display devices at present.The effect of TFT display is similar to that of CRT display.therefore，Not only the speed of TFT can be increased，Not only the speed of TFT can be improved, but also the contrast and brightness can be greatly improved. At the same time, the resolution has reached a very high level.STN uses electric field to change the arrangement of twisted liquid crystal molecules above 180 degrees to change the optical rotation state.Electric field changes electric field by means of progressive scanning,In the process of electric field changing voltage repeatedly，The recovery process at each point is slow.Consequently, it produces afterglow.The biggest advantages of TFT are low power consumption and power saving.The principle of color STN display is to add color filters to traditional monochrome STN LCD display.Each sub-pixel in the monochrome display matrix is divided into three sub-pixels，It shows three primary colors of red, green and blue respectively through color filters.then can display the color picture.STN belongs to passive PASSIVE LCD.Generally, it can display 35536 colors.